Device for manufacturing paper bags.



No. 857,067. A PATENTED JUNE 18, 1907.

T. HUGO. DEVICE FOR MANUFACTURING PAPER BAGS.

APPLICATION FILED JAN.27, 1906.

UNITED STATES OFFICE.

TIIEODOR HUGO, OF BERLIN, GERMANY, ASSIGNOR TO THE FIRM OF GEBRDER TELLSCI-IOW, OF BERLIN, GERMANY.

DEVICE FOR MANUFACTURING PAPER BAGS.

Specification of Letters Patent.

Patented June 18, 1907.

Application filed January 27, 1906. Serial No. 298,196.

To @ZZ whom, it may concern.-

Be it known that I, THEoDon HUGO, engineer, and a subject of the King of Prussia, residing at 27 Gri'mauerstrasse, in the city of Berlin, Kingdom of Prussia, and German Empire, have invented certain new and useful Improvements in and Connected with Devices for Manufacturing Paper Bags, of which the following is a specification.

This invention relates to machines for making paper bags and especially to machines for making block bottom or other bags, in which the folded bag `is allowed to remain on its core or former until the pasted bottom is sufficiently dry. Prior machines of this class, in which the work is moved for` wardly during its completion, on a wheel, chain or the like, have the disadvantage that the form-blocks or cores used to shape the bag, are fast on an endless track, so that the arrangement of said blocks or cores during the drying cannot be chosen independently from the arrangement which they have relatively to each other during the folding. Consequently the intermediate spaces between the individual formers in those machines cannot be adjusted at will it is also onlyl possible in such machines to have the entire movement of the formers take place in one plane.

In order to obtain a completely free working space, a complete independence of the arrangement of the form blocks during the drying and the folding, and to obtain time for the principal operations paper feeding, shaping, folding, etc., the form blocks, serving as patterns, according to the present invention, are movably mounted so that they traverse a space, after their passage through the folding mechanism and without being connected together, in an endless chain, in which the complete drying can take place without interrupting the operation of the machine. This arrangement also permits of moving the former blocks forwardly step by step, Vnot only in a single plane, but also of turning one after the other each former directly in front of the place where the .main operation takes place, by means of a turning mechanism, into a plane lying at right angles to the former plane, from which then, after the completion of the folding the formers enter the endless track for the drying,

An embodiment of the invention in a machine is represented in the drawing, in which- Figure l is an elevation of the machine with parts in section; Fig. 2 is a cross section on the line A-B of Fig. l and Fig. 3 is an elevation looking toward one of the rotating carriers.

The frame over which the formers a and the holders b are fed, consists of two side pieces c, in the space between which is located. a sleeve d. The upper and lower sides of said sleeve are provided with slide surfaces for the form holders l), the heads of which are guided in the slots c formed above and below between the side piecesc, The driving shaft e for the rotary carriers which are located at the ends of the frame, is journaled in the sleeve d. Said rotary carriers are provided, on the side opposite the frame, with a flange which has a plurality (in the present case four) of guide slots n, having the same cross section as the two slots c of the frame. The hubs of the carriers f have the same diameter as the sleeve d so that, between the flange and the hub, guide blocks l) can be taken up by the carriers at the points where the slots n are provided in the flange of the carriers. On the sides of the rotary carriers opposite to the frame are provided, oppositely to the guide slots, a plurality (in this ease four) of hollow cylinders q in which are journaled pushers zf, which pass through the carriers and can be projected so far that they remove from the carriers the block holders I) held therein. `With each of the pusliers '/t is connected perpendicularl y a short shaft li on which a conical roller V/r is mounted. The shaft t projects through a slot Zin the hollow cylinder g. In position to engage the conical rollers 7c there are mounted, on one side above and on the other side below, grooved cam disks m at the ends of the guides in the frame, the rollers 7i: being intermittently reciprocated by the said disks. These grooved cam disks fm are driven so that when the rotary carriers are stationary, said disks m rotate and thereby, through the pushers 71 remove the form blocks and holders, lying in thc guides of the frame, from the rotary carriers.

In the path of the blocks located in the first rotary carrier lie, as is usual, folding arms provided with movable sides, and the pasting n'lechanism, while the means for fold ing the bottom around tlief rn1e1a1c located lOO f, which performs the folding (shown to the beneath the frame below the first half of the l formers.

lThe operation of the apparatus is as fole lows: The blocks ct, mounted on the holders l), are inserted in immediate sequence above and below the sleeve d into the slots c in the frame composed of the two side pieces c. From the four guide slots n of the first carrier left of Fig. l) two guide slots, following one after the other, are always supplied with holders and former blocks. The second carrierf (to the right of Fig. l) is likewise always provided with former blocks and holders, but in the guide slots lying at 180o to those of the first carrier. When now the last former block of the first carrier is at the top and that. of the second carrier at the bottom, during the next quarter turn of the two carriers, the last former block a of the first carrier will be provided with a sheet of paper and will be moved through the shaping means, whereby the external folding and pasting of the paper bag is performed. At the Sametime the first former block of the first carrier f in the direction of movement, comes into the lowest position and an empty guide slot of the same carrier comes into the uppermost position. In consequence of the simultaneous rotation of the two carriers f there comes now into the uppermost position a slot provided with a former block, while an empty slot comes into y the lowest position. During the intermission in the movement which now takes place, the rollers f: of the pushers 7L, traversing` the carriers are engaged by the grooved cam disks m. The pushers are thereby advanced behind the former block in the first carrier, which is in the lowest position, and behind the block in the second carrier, which is in the uppermost position, whereby said two blocks are driven out of the carriers into the lower and upper guides of the frame. Since by this movement the assembled blocks7 received in the frame above and below, are fed in opposite directions, a new former block will enter simultaneously into the upper empty slot of the first carrier, while another former block will enter into the lower empty slot of the second carrier. Consequently, during the neXt partial rotation of the first carrier, a new folding operation can take place. The previously folded opened bags, which are on the lowest former block of the first carrier, are removed from the same at the next intermission of movement, in order. that they may be folded at the bottom. This latter operation takes place during the first half of the travel of all the former blocks in the lower guide of the frame. During the remaining travel the completely folded bag remains on the former, in order that sufficient time for drying may he afforded. The Guide block completes its travel in the lower guide of the frame, is taken up by the second carrier and is pushed into the upper guide of the frame against the blocks already therein. The removal of the finished paper bag becomes only necessary after the block has left the upper guide.

By making the frame of a suitable length and selecting a suitable number of blocks, the length of time for the drying can be regulated at will. The formers may have any desired shape, either quadratic, rectangular, or round in cross section, or they may consist of sheet metal forms of any desired shape.

For the better kind of packages it is necessary to line the bags with parchment or similar material; in other words, to form a socalled double bag. In the production of such packages it is important that the casing and lining of these double bags be pasted t0- gether. This can be done in the following manner: Instead of, as in the previously described apparatus, roviding formers on one carrier, in the proc uction of the lined bags, both carriers are provided with formers. The former of the first carrier in this case, folds the lining, while that of the second carrier folds the casing of the bag. Consequently the former block goes through the first formers on the first carrier, folds the sheet of paper for the lining and the inner shell of the bag thus formed moves over the first lower half of the frame while it dries on the second A/half thereof. The lining then passes into the second carrier and goes through the second formers,where the casing is folded around the same. The return movement takes place on the upper side of the frame, in the same way as when simple bags are being made. In order to obtain also with this arrangement a thorough and complete drying, the number of the former blocks can be suitably increased or made sufficiently great.

Vhat I claim is:

1. In a machine for making paper bags, the combination of a frame having guide ways, holders movable therein, carriers adapted lto receive said holders and transfer them from one guide way to the other, pushers on said carriers, and means for actuating the pushers, substantially as described.

2. In a machine for making paper bags, the combination of a frame having oppositely arranged guide ways, independent holders movable therein, -rotary carriers adapted to receive and transfer said holders from one guide way to the other, pushers on said carriers, and means for actuating the pushers, substantially as set forth.

IOO

IIO

3. In a machine for making paper bags,

the combination of a frame having an upper and a lower guide way, a plurality of independent holders movable in said guide ways, a rotary carrier at each end of said frame adapted to receive and transfer said holders from one guide way to the other, pushers reciprocating in said carriers, and rotary cam disks for actuating said pushers, substantially as described.

4. In a machine for making paper bags, the combination of a stationary frame having guide ways, independent holders movable therein, bag formers mounted on said holders, rotary carriers having slots adapted to be brought into line with the guide Ways in the frame, reciprocating pushers on said carriers in line with said slots, and means for actuating said pushers, substantially as described.

5. In a machine for making paper bags, the combination of a stationary frame having an upper and a lower guido slot extending from end to end thereof, independent holders movable in said slots, bag formers mounted on said holders, a rotary carrier at each end of said frame provided with a plurality of slots and pushers adapted to be brought successively into line with said guide slots, means for rotating` said carriers, and cams for actuating said pushers, substantially as described.

6. In a bag machine, the combination of a stationary frame having an upper and a lower guide slot and cooperating slides, in,-

dependent holders movable within said slots and upon said slides, 'formers mounted on said holders, rotary carriers eachl having a plurality of slots, and a pusher movable in each slot, means Vfor giving the carriers a partial rotation to bring the slots therein successively into line with the guide slots in the frame, and cams adapted to actuate the pushers when the carriers are at rest, substantially as described.

7. In` a machine for making paper bags, the combination of a stationary frame having guide ways, holders movable in the latter', intermittently rotating carriers adapted to receive said holders and transfer them 'from one guide way to the other, pushers in said carriers, and means for actuating said pushers when the carriers are at rest, substantially as described.

In witness whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

THEODOR HUGO.

I/Vitnesses HENRY HASPER, VOLDEMAR HAUPT. 

